Sensor Solutions Holdings (SSH)

Sensor Solutions Holdings (SSH) was a diversified manufacturer of specialized sensor equipment. SSH was composed of two operating companies. Nielsen-Kellerman was a leading manufacturer of portable devises to measure environmental conditions for use in agriculture, fire fighting, industrial hygiene, mining, military and various recreational markets. Amptek Inc. designed and manufactured instrumentation used in numerous non-destructive testing and elemental analysis applications. Amptek was sold in 2014 and Nielsen-Kellerman was sold in 2017.